Why is My Dishwasher Not Draining?

Although it’s always annoying to open the dishwasher and realize the machine is still full of water, don’t overreact just yet. You might have the means to rectify the error without having to call a plumber or buy a brand-new machine.

Standing water in your machine can be bought about by multiple components a number of which can be easy to resolve. Therefore, before you call a dishwasher repair service try this selection of possible components you may troubleshoot yourself. Some of which aren’t even a fault of the machine itself.

Check the dishwasher wasn’t interrupted mid-cycle

If you’re lucky the fact your dishwasher hasn’t emptied may not be a fault at all. Instead, the cycle could have been interrupted.

The program might have been stopped mid-way for a number of of reasons. Little fingers pressing buttons, accidentally pressing against the controls, a power surge or opening the dishwasher mid-program may all interrupt the program and mean your machine doesn’t empty.

If you think this could be the circumstance, or you think it may be worthwhile checking run the dishwasher again on a quick program.

A proportion appliances might have a drain capacity so it’s worth having a look at your manual or checking online to check.

Examine the waste disposal

If you have a disposal inspect this before you do anything else as an obstructed disposal will stop the dishwasher from emptying. Turn on the garbage disposal with plenty of water to ensure there are no obstructions.

If you do discover an obstruction drain un-blocker or a natural alternative could be sought after to unclog the blockage and so this may fix the fault.

Examine the plumbing for clogs

If you kitchen sink is emptying inefficiently this may signify a plumbing issue as opposed to a problem with your machine.

In the case that the sink is draining slowly you can try putting a little bicarb and vinegar down the plughole, leaving it for a few minutes and subsequently washing it away with hot water.

A sink plunger could also be employed to attempt to remove the blockage.

This might be all you need to do to permit the dishwasher to drain so start a short program to check. If not you may manually remove the standing water using a bowl and also a towel and check a few more areas.

At this point make certain to turn off the machine to stay safe.

If during any of these checks you suspect you have detected and repaired the issue you don’t have to go through the remaining steps. Just complete an empty cycle to ensure your dishwasher is once again emptying as it used to.

Check and wash the filters

Any number of things could block the filters including corn kernels, paper from jars, film covers and broken glass. Clear plastic lids may also be difficult to see if you don’t look carefully.

Take out the filter and give it a good wash before putting it back in place. Not all dishwashers have their filter in the same location so you might need to refer to the owners manual for this.

Is the drain hose obstructed?

The next place to examine is the drain pipe. Stuck food, a kink in the hose or a crushed hose may all impede your dishwasher from emptying.

Subject to the position of the waste pipe (usually the corrugated one) you might manage look at it by lifting away the kick plate or you may have to move the machine away from under the counter.

Look at the hose in the first instance to discover if it has been crushed or kinked. You might have the means to manually remove any kinks which will most likely solve the issue, but be aware that once this has occurred the chance of it occurring again is greatly increased so you could need to purchase a new hose.

If you can’t find anything you may take off the drain hose from the machine and blow through it to check for any blockages. Make sure you put down newspaper or towels first as there could still be waste water in the hose.

If you can’t blow through the waste pipe this might be the problem.

Take off the other end of the hose and then give it a good flush through to clear the blockage. If you can’t get rid of the obstruction or the waste hose is split or degraded acquire a brand-new one. If you may remove the obstruction then replace the hose and start a short cycle to double check that you have fixed the issue.

You can also check the point where the waste hose attaches under your sink. This is a typical point for blockages to occur so if you do remove the hose give this point a good scrub as well.

Examine the drain valve

You could inspect the drain valve by hand to make sure it isn’t seized. The drain valve will generally be located at the base of the machine on the valve bracket. Check your manual if you can’t see it.

Depressing the valve or giving it a jiggle should be sufficient to let you know if it’s seized. If you are able to see anything stopping it from moving carefully extract this. If you can’t, this could be when you should get in touch with a plumber unless you are undaunted by procuring and swapping out the component on your own.

Examine your pump is not broken

Your appliance pump makes use of impellers that may become obstructed by pieces of china or other debris. Check your pump isn’t obstructed by removing the safety cover and ensuring that the impellers can rotate freely.

Run your dishwasher and listen for any unusual noises

If it doesn’t sound right your dishwasher pump or motor may be faulty and need replacing.

Call a plumber

If none of the above investigations has solved the problem, or you think the pump, pump valve or motor are broken, it might be a good time to call for help.

At least having attempted to investigate what is wrong you have avoided having to pay a hefty repair fee for a blocked hose.

More Dishwasher Problems:

  • Dishwasher Being Loud
  • Dishwasher Not Turning On
  • Dishwasher Leaking
  • Dishwasher Not Drying
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